PartsTable
Technical Data Sheet
Download PDF

SS49MC902J4-17R — SWITCH,RADIO FREQUENCY TRANSMISS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SS49MC902J4-17R: SWITCH,RADIO FREQUENCY TRANSMISS.

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include material: STEEL COMP 304 OVERALL, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARELESS (TUBE) ALL ENDS, special_features: COLOR YELLOW; FILTERED RESTRICTOR 0.197 IN. DIA,0.550 IN.

LG; 1.44-2.16 GPM FLOW IN. This part is cataloged in the U.S. Government catalog under NSN 4730-01-170-2437, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
SS49MC902J4-17R
NSN: 4730-01-170-2437
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
seat_angle12.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
special_featuresCOLOR YELLOW; FILTERED RESTRICTOR 0.197 IN. DIA,0.550 IN. LG; 1.44-2.16 GPM FLOW IN
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_thread_size0.437 INCHES ALL ENDS IN
nominal_overall_length1.062 INCHES IN
end_item_identificationSUKORSKY HELICOPTER
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
reduced_passage_nominal_inside_diameter0.036 INCHES FIRST END IN
NSN4730-01-170-2437
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS49MC902J4-17R · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.062 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
REDUCED PASSAGE NOMINAL INSIDE DIAMETER: 0.036 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.437 INCHES ALL ENDS IN
•
SEAT ANGLE: 12.0 DEGREES ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.062 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.036 INCHES FIRST END IN
NOMINAL THREAD SIZE0.437 INCHES ALL ENDS IN
SEAT ANGLE12.0 DEGREES ALL ENDS
SPECIAL FEATURESCOLOR YELLOW; FILTERED RESTRICTOR 0.197 IN. DIA,0.550 IN. LG; 1.44-2.16 GPM FLOW IN
THREAD CLASS3A ALL ENDS A
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 2
JSFA1790204JRSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SS49Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy SS49MC902J4-17R?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is SS49MC902J4-17R?
SS49MC902J4-17R is a SWITCH,RADIO FREQUENCY TRANSMISS.
What parts can replace SS49MC902J4-17R?
There are 2 known substitutes for SS49MC902J4-17R: JSFA1790204JR, SS49. Substitute compatibility should be verified for your specific system.
What is the NSN for SS49MC902J4-17R?
SS49MC902J4-17R is cataloged in the U.S. Government catalog under NSN 4730-01-170-2437. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — SS49MC902J4-17R

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.